Among the proteinogenic amino acids, there are three BCAAs: leucine, isoleucine, and valine. Studies show that BCAAs benefit athletic performance by reducing muscle mass breakdown, improving recovery times, and stimulating muscle protein synthesis, to help you stack on more gains. Supplementing with branched chain amino acids (BCAAs) will heal, nourish and repair your muscles so they won't fall apart when you push them beyond your training threshold. Muscle Master’s BCAA is in a ratio of 8:1:1 that is, 8 times more leucine compared to valine and isoleucine.